Which is better for you, peanut butter or Marmite?
                                
                                
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                                    3 min read                                
                            
                                According to a 2017 University of York study, Marmite's high vitamin B12 content may support brain function and even reduce the brain's response to visual stimuli. Yet, millions still ask: which is better for you, peanut butter or Marmite?